Fast Company March 4, 2020
That included Planned Parenthood’s Spot On period tracker, home test kit company Everlywell, and hypnotherapy app Clementine.
Facebook knows every time I work out. It knows that I’ve considered a health savings account, bought prescription skincare, and done way too much research about psychedelics and mental health. And for a while, it also knew every time I opened Planned Parenthood’s Spot On app, which I only did to log my period.
That’s according to my “off Facebook activity,” a lengthy list of all the companies that allow Facebook to track my interactions on their websites and apps in order to send targeted advertising. When I downloaded it...
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